Beach forecast for Marine Corps Base Hawaii - MCBH
Today, Wednesday, October 28, 2026 · local time (HST) · Hawaii, United States Today, Wed, Oct 28 · HST- Swimming
- Use care · 4.9 ft
- Water
- 79 °F · warm
- Max UV
- 2 · SPF 15
- Low tide
- 11:04 am and 9:24 pm
Today, Wednesday, October 28, it's not a beach day in Marine Corps Base Hawaii - MCBH (0/10). The best day this week is Saturday, October 31, at 4/10.
Beach forecast for the next 7 days
| Day | Rating | Best hours | Swimming | Water | UV |
|---|---|---|---|---|---|
| Today | 0Not a beach day | Not today | Use care · 4.9 ft | 79 °F | 2 |
| Thu 29 | 1Not a beach day | No good window | Use care · 6.0 ft | 79 °F | 3 |
| Fri 30 | 2Not a beach day | No good window | Use care · 5.8 ft | 79 °F | 8 |
| Sat 31 | 4Poor beach day | 9:00 am–2:00 pm | Use care · 4.7 ft | 79 °F | 8 |
| Sun 1 | 1Not a beach day | No good window | Dangerous · 6.0 ft | 79 °F | 7 |
| Mon 2 | 0Not a beach day | No good window | Dangerous · 8.9 ft | 78 °F | — |
| Tue 3 | 0Not a beach day | No good window | Dangerous · 8.1 ft | 78 °F | — |
Each rating comes from sun, temperature, rain, wind, waves, UV, water temperature and, where there is one, the tide.
Today in detail
- Feels like 82 °F: beach weather
- Water at 79 °F (warm)
- Low tide at 11:04 am: more sand
- Cloudy (100% cloud cover)
- Rain (2.47 in)
- Fresh onshore wind (20 mph): blowing sand
Today, hour by hour
- Swimming Use care · 4.9 ft
4.9 ft waves every 8 s: swim with care and stay where you can stand. High rip current risk. If you're caught in a rip current, don't swim against it: swim parallel to shore and wave for help. Always follow the lifeguard's flags.
- Water 79 °F
Warm: very pleasant.
- Sun & sunscreen UV 2 · SPF 15
Max UV 2 (low): SPF 15 sunscreen.
- Wind 20 mph
Fresh onshore wind (20 mph): blowing sand.
- Tide & sand 9:24 pm
Low tide at 11:04 am and 9:24 pm: that's when there's the most sand. High tide at 4:33 am and 2:11 pm.
We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority.
Today, hour by hour
| Time | Rating | Sky | Feels like | Wind | Waves | UV |
|---|---|---|---|---|---|---|
| 8:00 am | 0 | Light rain | 82 °F | 8 mph | 4.6 ft | 0 |
| 9:00 am | 0 | Rain | 80 °F | 12 mph | 4.6 ft | 0 |
| 10:00 am | 0 | Rain | 78 °F | 17 mph | 4.6 ft | 0 |
| 11:00 am | 0 | Rain | 76 °F | 20 mph | 4.6 ft | 1 |
| 12:00 pm | 0 | Heavy rain | 76 °F | 20 mph | 4.7 ft | 1 |
| 1:00 pm | 0 | Heavy rain | 76 °F | 17 mph | 4.7 ft | 1 |
| 2:00 pm | 0 | Heavy rain | 76 °F | 15 mph | 4.7 ft | 2 |
| 3:00 pm | 0 | Rain | 76 °F | 14 mph | 4.9 ft | 1 |
| 4:00 pm | 0 | Rain | 76 °F | 13 mph | 5.1 ft | 1 |
Beach hours only: from one hour after sunrise to half an hour before sunset.
Beaches near Marine Corps Base Hawaii - MCBH
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- North Beach 0.8 mi · N
- Kailua Beach 2.2 mi · S
- Parking
- Lanikai Beach 4.2 mi · SE
- Parking
Water quality: check the official beach advisories for Hawaii (Hawaii Department of Health).
Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Marine Corps Base Hawaii - MCBH
Webcams provided by windy.com — add a webcam
How we rate a beach day
We rate every beach hour from 0 to 10 with simple, fixed rules:
- Adds: sunshine (up to 3 points, fewer with more clouds), warmth (up to 4, from the feels-like temperature; ideal between 81 °F and 91 °F), a calm sea (1), water at 70 °F or warmer (1; from 64 °F, half) and low or mid tide (1: more sand). Anything without data is left out and the rest is scaled to 10.
- Takes away: cold (feels-like below 64 °F, 1 to 4 points), rain (half a point if likely, up to 6 if it rains; thunderstorms, 8), wind from force 4, about 12 mph (1 to 6 points; half a point more if offshore, which blows inflatables out to sea, or onshore, which churns the water), waves (1 to swim with care, 4 if dangerous, 1 more for high rip current risk), very high UV (half a point; extreme, 1), water below 59 °F (1) and spring high tides (1: little sand left).
- Swimming: calm, use care (waves from 2.6 ft, or long swell) or dangerous (from 6.6 ft, or 4.9 ft with a long period), based on how much of the wave reaches this shore given the way it faces. In the U.S., today's and tomorrow's rip current risk comes from the National Weather Service surf zone forecast when it issues one; otherwise we estimate it from the waves.
- Best windows: runs of 2 to 5 hours rated 4 or more and close to the best hour, at least one hour apart.
- Day rating: the average of the best window; a 2-hour window keeps 85% of it and a 3-hour window 95%.
Today, in the best window: sun 0 of 3, warmth 4 of 4, calm sea 0 of 1, water 1 of 1 and tide 1 of 1; minus rain 6 and waves 2; short window: the rating keeps 85%.
It's a guide, not a guarantee: weather changes and every beach is different. Always follow the lifeguard's flags.
Questions about the beach in Marine Corps Base Hawaii - MCBH
Is it a beach day in Marine Corps Base Hawaii - MCBH today?
Not a beach day: 0/10. No good beach time today.
What are the swimming conditions in Marine Corps Base Hawaii - MCBH today?
4.9 ft waves every 8 s: swim with care and stay where you can stand. High rip current risk. If you're caught in a rip current, don't swim against it: swim parallel to shore and wave for help. Always follow the lifeguard's flags.
How warm is the water in Marine Corps Base Hawaii - MCBH?
About 79 °F today: warm. That's the sea surface temperature offshore; it can differ a little at the shoreline.
How much sun protection do I need in Marine Corps Base Hawaii - MCBH today?
UV reaches 2 (low): SPF 15 sunscreen, sunglasses and a hat.
When is low tide in Marine Corps Base Hawaii - MCBH?
Today low tide is at 11:04 am and 9:24 pm: that's when there's the most sand. High tide is at 4:33 am and 2:11 pm.
What about tomorrow? Will it be a beach day in Marine Corps Base Hawaii - MCBH?
Tomorrow, Thursday, October 29: not a beach day (1/10).
What beaches are near Marine Corps Base Hawaii - MCBH?
North Beach (0.8 mi), Kailua Beach (2.2 mi) and Lanikai Beach (4.2 mi). See below for amenities and water quality.
Are there jellyfish or sargassum today?
We don't know: there's no open data on jellyfish, sargassum or closures for each beach. Ask the lifeguard, check the flags or the local beach authority's website.
How is the rating worked out?
From the hourly forecast: sun and clouds, feels-like temperature, rain, wind (and whether it blows onshore or offshore), waves and their period, UV, water temperature and, where there is one, the tide. Each factor adds or takes away a fixed number of points and the rating sums them up out of 10.
More about Marine Corps Base Hawaii - MCBH today
Learn more
Our own calculation, using the Open-Meteo forecast (ECMWF, NOAA GFS, Météo-France, Copernicus Marine and CAMS, CC BY 4.0), the tide from Moku O Loe (NOAA) and the sun from astronomy-engine. Slackwater database (https://github.com/openwatersio/slackwater-database)